North
Date TimeNO2O3SO2COPM10PM2.5
2022-01-20 19:0044.381.63.9362.023.314.3
2022-01-20 18:0046.184.63.9322.727.615.6
2022-01-20 17:0054.980.14.2349.027.215.6
2022-01-20 16:0037.2102.54.2278.624.316.1
2022-01-20 15:0032.2101.83.9260.319.813.3
2022-01-20 14:0034.196.63.8277.620.910.9
2022-01-20 13:0027.194.14.1294.426.516.4
2022-01-20 12:0036.872.14.3352.127.018.1
2022-01-20 11:0039.743.54.5416.725.115.9
2022-01-20 10:0036.132.24.1428.426.316.5
2022-01-20 09:0052.010.85.4561.824.516.6
2022-01-20 08:0062.53.78.2908.221.214.4
2022-01-20 07:0048.53.15.9805.316.411.5
2022-01-20 06:0040.75.03.9664.015.811.6
2022-01-20 05:0035.77.53.2448.419.315.1
2022-01-20 04:0033.410.72.7453.719.114.7
2022-01-20 03:0034.19.62.7520.921.413.7
2022-01-20 02:0042.111.03.0512.222.913.5
2022-01-20 01:0053.68.33.2622.726.516.0
2022-01-20 00:0059.46.63.6624.634.021.3
2022-01-19 23:0064.56.03.4758.041.826.8
2022-01-19 22:0085.07.23.8805.250.133.3
2022-01-19 21:0085.512.43.6727.144.926.4
2022-01-19 20:0092.326.23.3772.638.416.1
Remarks:

(1) Time shown is in Hong Kong time.

(2) NO2 - nitrogen dioxide, O3 - ozone,
     SO2 - sulphur dioxide, CO - carbon monoxide,
     PM10 - respirable suspended particulates,
     PM2.5 - fine suspended particulates

(3) Concentration shown is in µg/m3.

(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.

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Last revision date: 19:07 20-01-2022